/*
 * Copyright 2013-2023 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.alibaba.cloud.sentinel;

import java.util.Optional;

import com.alibaba.csp.sentinel.adapter.spring.webmvc.SentinelWebInterceptor;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

/**
 * @author chao.wu
 */
public class SentinelWebMvcConfigurer
        implements WebMvcConfigurer {

    private static final Logger log = LoggerFactory.getLogger(SentinelWebMvcConfigurer.class);

    @Autowired
    private SentinelProperties sentinelProperties;

    @Autowired
    private Optional<SentinelWebInterceptor> sentinelWebInterceptorOptional;

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        if (!sentinelWebInterceptorOptional.isPresent()) {
            return;
        }
        SentinelProperties.Filter filterConfig = sentinelProperties.getFilter();
        registry.addInterceptor(sentinelWebInterceptorOptional.get()).order(filterConfig.getOrder()).addPathPatterns(filterConfig.getUrlPatterns());
        log.info("[Sentinel Starter] register SentinelWebInterceptor with urlPatterns: {}.", filterConfig.getUrlPatterns());
    }

}
